WP Mailster v1.8.0

[Feature] Introduce subscribe and unsubscribe shortcodes ([mst_subscribe] and [mst_unsubscribe])
Checkout our documentation for more information.
[Improvement] UI optimization: full width for emails/lists/users/groups/servers/… table views
[Bug Fix] Fix for moderation mode: bounced/blocked/filtered emails will not produce a moderation request
[Bug Fix] Fix handling of certain binary attachments
[Bug Fix] Fix database issues (db maintenance) on WP multisite installations